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Virtual file system

  • US 20050114350A1
  • Filed: 11/30/2004
  • Published: 05/26/2005
  • Est. Priority Date: 11/28/2001
  • Status: Active Grant
First Claim
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1. A virtual file system, comprising:

  • a plurality of storage processor nodes including at least one management node;

    a backbone switch, coupled to said plurality of storage processor nodes, that enables communication between each of said plurality of storage processor nodes;

    a disk drive array coupled to and distributed across said plurality of storage processor nodes, said disk drive array storing a plurality of titles, each title divided into a plurality of subchunks which are distributed across said disk drive array in which each subchunk is stored on a disk drive of said disk drive array; and

    said at least one management node executing a virtual file manager which manages storage and access of each subchunk of said plurality of titles, and which maintains a plurality of directory entries including a directory entry for each title, each said directory entry comprising a list of subchunk location entries in which each subchunk location entry comprises a storage processor node identifier, a disk drive identifier, and a logical address for locating and accessing each subchunk of each title stored on said disk drive array.

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